1581086, update image filenames part two 10-12 AM (#15144)

* 1581086, worked on 11 MD files.

* 1581086, fixed CATs error message.

* 1581086, apply suggestions from BillWagner's code review

Co-Authored-By: Bill Wagner <[email protected]>

Author: john-par

docs/architecture/modernize-with-azure-containers/modernize-existing-apps-to-cloud-optimized/deploy-existing-net-apps-as-windows-containers.md

@@ -45,7 +45,7 @@ Significant improvements in agility, portability, and control ultimately lead to
 
 [Docker](https://www.docker.com/) is an [open-source project](https://github.com/docker/docker) that automates the deployment of applications as portable, self-sufficient containers that can run in the cloud or on-premises. Docker is also a [company](https://www.docker.com/) that promotes and evolves this technology. The company works in collaboration with cloud, Linux, and Windows vendors, including Microsoft.
 
-![Docker deploys containers at all layers of the hybrid cloud](./media/image6.png)
+![Diagram showing how Docker deploys containers in the hybrid cloud.](./media/deploy-existing-net-apps-as-windows-containers/docker-deploys-containers-all-layers.png)
 
 **Figure 4-6.** Docker deploys containers at all layers of the hybrid cloud
 
@@ -77,7 +77,7 @@ For Linux, multiple distros are available and supported in official .NET Docker
 
 Figure 4-7 shows OS versions that you can target, depending on the app's version of the .NET Framework.
 
-![Operating systems to target based on .NET Framework version](./media/image7.png)
+![Diagram showing what OS to target based on .NET Framework version.](./media/deploy-existing-net-apps-as-windows-containers/dotnet-framework-operating-systems.png)
 
 **Figure 4-7.** Operating systems to target based on .NET Framework version
 
@@ -132,7 +132,7 @@ Running a container on Windows with or without Hyper-V isolation is a run-time d
 In previous sections, it’s been explained what the benefits of Docker containers are as well as details on the specific container images for .NET applications. All that generic information is fundamental in order to develop or containerize an application.
 However, when thinking about the production deployment environment or even QA and Dev/Test environments, Microsoft Azure provides an open and broad variety of choices, a full container ecosystem in the cloud (shown in the diagram below). Depending on your specific application’s needs, you should choose one or another Azure product.
 
-![The container ecosystem in Azure](./media/image7.5.png)
+![Diagram of the container ecosystem in Azure.](./media/deploy-existing-net-apps-as-windows-containers/azure-container-ecosystem.png)
 
 **Figure 4-7.5.** The container ecosystem in Azure
 

docs/architecture/modernize-with-azure-containers/modernize-existing-apps-to-cloud-optimized/index.md

@@ -11,7 +11,7 @@ To take advantage of the benefits of the cloud and new technologies like contain
 
 Partially modernizing an app doesn’t necessarily mean a full migration and rearchitecture. You can initially modernize your existing applications with important but easy to do modernization. You can maintain your current code base, written in existing .NET Framework versions, with any Windows and IIS dependencies. Figure 4-1 highlights how Cloud-Optimized apps are positioned in Azure application modernization maturity models.
 
-![Positioning Cloud-Optimized applications](./media/image1.png)
+![Diagram of how to position cloud-optimized applications.](./media/index/position-cloud-optimized-application.png)
 
 **Figure 4-1.** Positioning Cloud-Optimized applications